In the chemical product that monitors mainly, most product value than going up the month rises. September, average price is caustic soda 4000 yuan / ton, than going up the month rises 3.1% , rise compared to the same period 58.1%; soda ash 2250 yuan / ton, than going up the month rises 28.6% , rise compared to the same period 48% . Urea 1630 yuan / ton, than going up the month rises 4.5% , rise compared to the same period 33.6%; homebred phosphoric acid 2 ammonium 2450 yuan / ton, than going up the month drops 0.4% , drop compared to the same period 8.6% . Calcium carbide 2870 yuan / ton, than going up the month rises 6.7% , rise compared to the same period 16.7% .